Back for brake-shoes.



FITZ WILLIAM SARGENT.

BACK FOR BRAKE SHOES.

. APPLICATION FILED JULY 21, 1915.

1,157,183. Patented Oct. 19, 1915.

l/VI/E/V TOR A 770mm COLUMBIA PLANOGRAPH CO-HNASHINGTDN, D. :4

'1 "ii'ITz WILLIA slinnn'r;

TIoN orivnw JE SEY.

= Tokallrwhom z'tmayconcfln;

Be it knownthat I, Frrz W1LLIAM.SAR- GENT, a citizen of the'Unit'edStates, and a residentgofI-Mahwah, inthe county-of Bergen and State ofNew Jersey, have made-l and "inventedcertain new and-useful 1mprovements in ,Backs for'Brake-Shoes, of

i which the following is a specification.

This invention "relates to aflreinforcing.

back for brake shoes, and concerns in part cular the securement of thewrought metal lug to the reinforcing back, the object of the inventionbeing to accomplish 'theforegoing in such manner that the reinforcingback will not be weakened thereby, as has=- been the case when thetransverse width of the central portion of the back has been reduced, inorder that the ends of the lug could be bent therearound.

A further object is to ofiset the central portion of the reinforcingback, and against which the toes of the lug are bent, so that the latterdo not extendto any considerable depth Within the cast body of the shoe,allowing the same to be entirely worn away without the lug being cut orsevered from the shoe. A further object is to effect the securement ofthe lug to the steel back insuch manner .that the toes of the lug do notextend to any considerable distance in the body metal of the shoe, andto accomplish the foregoing without requiring-other than i 'a slightoffsetting or crimping. of therein forcing back, and thus eliminatingthe possibilities of the reinforcing back becoming cracked or injuredduring. the formation of.

such offset. j 3 Other objects and advantages will appear as thedescription proceeds, wherein it is to be understood that changes in theprecise tion.

v oF'MAHwAH, NnwfrEnsnY, As'srenon 'ro AMERICAN BRAKE; SHOE & FOUNDRYCOMPANY, or MAI-IWAH, new JERSEY, AIGORPORA- BACK FOR BRAKE-SHOES.

Specification of Letters Patent t t Oct 19 5 Application filed July-271915. Seria1 No.4 2,137. I

7 improved reinforcing back and securing lug,

the, section beingjtaken at the transverse median plane of the brakeshoe; Fig. Lis a fragmental view in perspective of the reinforcing backand the attaching lug.

Referring specifically to the several views,

usual openings 6, for the reception of the cast metal of .thebody of theshoe, aiding in The spacing of the sides of the; lug ofxa,

brake shoe being fixed, and somewhat less than the width 1 of thereinforcing back, it hasbeen heretofore the practice to reduce the widthof the central portion of the reinforcing back in order toreceive theends of the lug therearound, such practice resulting in the materialweakening of the back, and in order to overcome this, and at the sametime to obtain the proper spacingv of the sides of the lug, I providethe reinforcing back 5, which is of substantially uniform Widththroughout, with the longitudinally extending, and spaced, slits 7.These slits are spaced a distance from the side edges of the reinforcingback and are -.the reinforcing back 5'is provided withthe formed by theshearing of the metal of the back by the forcingupward, and offsetting,

of the central portion 8. As the central portion of the back is upwardlyoffset, the portions 9 of the back which lie to the sides of the slits 7are downwardly offset to a distance approximately equal to, but oppositefrom, the upward offset of the central por- The shearing and offsettingof the portions of the back as thus outlined, iresults'in the formationof the two spacedconfronting openings .10.

- The attachinglug 11, which is preferably formed of wrought metal, hasthe sides 12 bent through the confronting openings 10, and the toes 13bent up into contact and engagement with the raised or upwardly offsetportion 8 of the reinforcing back. The body, 14 of the shoe is cast uponthe reinforcing back in theusual manner, and

portions thereof flow up and around the sides of the wrought metal lugso as to rein-- force and supplement the same.

Thereinforcing back being of substantially uniform width throughout, isnot in any wise weakened by the attachment of the securing lug, and theupward and down- 'Ward offsetting of the central and sidepora tions ofthe reinforcing baek,-resulting, jasr it does, in the formation ofconfronting openings 10, reduces, and practically chm inates,"thelikelihood ofthereinforcing back becoming fractured or injured by suchformation, and as sometimes happens When v the reinforcing back is iupwardly bridged v or ofl set'only'. The downward vofit'se t of the"sides of the back, and theslight protrusion of the toes of the lug belowthe general planeof the back do notinterfere'with, nor

7 provided With spaced slits and With anoffset portionthereintermediate, and a lug e'X-K tending through said slits. r

-2..A reinforcing backfor brake shoes 1 provided. with "spaced slits,and With the portion therebetween offset and defining confrontingopenings and a lug with the ings.

provided with spaced em with *the sides thereof oppositely; offset anddefining confronting openings, and a lug With thesides 7' iflextendingthrough said openings and bent intoenga saidback. v V

m4. A reinforcing back 'for brake shoes gementWit h 'the lower surfaceof provided With spaced slits, the portions-of.

the back lying therebetween being upwardly V I bent, and theportionslying'to the sides of said slits being downwardly oflset, and alugWith th'eendsthereofextending throughfi said slits.

Signed at Mama-h, in t -{cow (3f Bern and-State of NewJersey, this17th-1FITZ WILLIAM SARGENT."

Gopies o t thls patent reek be obtained for five' oent s each; byaddressing the Comniiss ioner of Patent$ Washington, D. 0.?

